{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-15013 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-15013 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-15013 is a critical authentication bypass vulnerability in cyberlord92 SAML Single Sign On – SSO Login, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-15013 and fix it if it is affected.\n\nWhat it is: CVE-2026-15013 is a critical authentication bypass vulnerability in cyberlord92 SAML Single Sign On – SSO Login, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-15013 in the wild and no public exploit code.\n\nAffected product: cyberlord92 SAML Single Sign On – SSO Login. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-15013/ (Markdown: https://insights.sbomify.com/CVE-2026-15013/index.md)","id":"CVE-2026-15013","markdown":"https://insights.sbomify.com/CVE-2026-15013/index.md","name":"CVE-2026-15013","record":{"aliases":["GHSA-p847-q8vx-c3fg"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress SSO plugin","requires_auth":"none","summary":"Unauthenticated attackers can bypass SAML authentication to gain administrator access by exploiting signature algorithm confusion in the WordPress SSO plugin.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass via SAML Signature Algorithm Confusion in all versions up to, and including, 5.4.3. The vulnerability exists because `Mo_SAML_Utilities::mo_saml_cast_key()` reads the `SignatureMethod` Algorithm attribute directly from the attacker-controlled `SAMLResponse` parameter rather than enforcing the locally configured algorithm, causing the plugin to recast the IdP's RSA public key as an HMAC-SHA1 shared secret and validate the forged signature against it. This makes it possible for unauthenticated attackers to forge a SAML assertion targeting any WordPress account — including administrators — obtain valid WordPress authentication cookies, and achieve full administrator-level account takeover.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2026-07-27","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-07-27T08:54:38Z","kind":"github_poc","ref":"https://github.com/zer0dayf/CVE-2026-15013","stars":1,"title":" CVE-2026-15013"},{"date":"2026-09-01","kind":"exploitdb","ref":"52668","stars":null,"title":"miniOrange  5.4.3 - Unauthenticated Auth Bypass"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Auth bypass in SAML Single Sign On – SSO Login","id":"CVE-2026-15013","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"SMS Alert \u003c= 3.9.7 - Unauthenticated Authentication Bypass to Account Takeover via 'billing_phone' Parameter","id":"CVE-2026-15014"},"packages":[],"prev":{"headline":"Demi \u003c= 0.0.8 - Unauthenticated Information Exposure to Arbitrary Directory Copy","id":"CVE-2026-15012"},"products":["SAML Single Sign On – SSO Login"],"published":"2026-07-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-07","vendors":["cyberlord92"]},"summary":"Unauthenticated attackers can bypass SAML authentication to gain administrator access by exploiting signature algorithm confusion in the WordPress SSO plugin.","url":"https://insights.sbomify.com/CVE-2026-15013/"}